package tom.http;

import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLStreamHandler;

import javax.servlet.Servlet;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class ServletProcessor {

	@SuppressWarnings("rawtypes")
	public void process(Request request,Response response){
		String uri = request.getUri();
		String servletName = uri.substring(uri.lastIndexOf('/') + 1);
		
		URLClassLoader loader = null;
		try{
			URL[] urls = new URL[1];
			URLStreamHandler streamHandler = null;
			File classPath = new File(Contants.WEB_ROOT);
			
			String repository = (new URL("file", null, classPath.getCanonicalPath()+File.separator)).toString();
			urls[0] = new URL(null, repository, streamHandler);
			loader = new URLClassLoader(urls);
		}catch(Exception e){
			System.out.println(e.toString());
		}
		
		Class myClass = null;
		try{
			myClass = loader.loadClass(servletName);
		}catch(ClassNotFoundException e){
			System.out.println(e.toString());
		}
		
		Servlet servlet = null;
		try{
			RequestFacaed requestFacaed = new RequestFacaed(request);
			ResponseFacade responseFacade = new ResponseFacade(response);
			servlet = (Servlet)myClass.newInstance();
			servlet.service((ServletRequest)requestFacaed, (ServletResponse)responseFacade);
		}catch(Exception e){
			System.out.println(e.toString());
		}
	}
	
}
